Hublot, BIG BANG, model: 641.NX.0173.LR.1104, automatic mechanical, titanium, set with 164 diamonds, case diameter: 42mm, movement: Equipped with Hublot's self-produced HUB4700 automatic chronograph movement, the skeletonized design allows for a direct view of the movement's operation. It has a power reserve of approximately 50 hours and supports chronograph and date display functions.